Narrative:

Smoke alarm went off. Controller panel over jumpseat 4L indicated smoke detected in mid cabin. Very strong electrical smoke odor came through cabin. #4 flight attendant on break in bunks -- main deck crew rest, nothing observed there. Before 1 min passed, smell dissipated and alarm stopped. Pilots had stopped recirculating air right before alarm went off, because of sick passenger. After alarm, they turned it back on again. Flight attendant turned off power ports and complete entertainment system. Since these 3 things occurred at the same time and alarm went off, we were unsure which stopped the electrical problem. As precaution, ovens were not used for remainder of flight. The speed at which such a strong electrical smoke odor permeated the cabin was surprising to me, and I was very thankful for the speed at which it dissipated.

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Original NASA ASRS Text

Title: B777-200 FLT ATTENDANT HEARD A CABIN SMOKE ALARM SOUNDING, AND DETECTED AN ELECTRICAL SMELL.

Narrative: SMOKE ALARM WENT OFF. CTLR PANEL OVER JUMPSEAT 4L INDICATED SMOKE DETECTED IN MID CABIN. VERY STRONG ELECTRICAL SMOKE ODOR CAME THROUGH CABIN. #4 FLT ATTENDANT ON BREAK IN BUNKS -- MAIN DECK CREW REST, NOTHING OBSERVED THERE. BEFORE 1 MIN PASSED, SMELL DISSIPATED AND ALARM STOPPED. PLTS HAD STOPPED RECIRCULATING AIR RIGHT BEFORE ALARM WENT OFF, BECAUSE OF SICK PAX. AFTER ALARM, THEY TURNED IT BACK ON AGAIN. FLT ATTENDANT TURNED OFF PWR PORTS AND COMPLETE ENTERTAINMENT SYS. SINCE THESE 3 THINGS OCCURRED AT THE SAME TIME AND ALARM WENT OFF, WE WERE UNSURE WHICH STOPPED THE ELECTRICAL PROB. AS PRECAUTION, OVENS WERE NOT USED FOR REMAINDER OF FLT. THE SPD AT WHICH SUCH A STRONG ELECTRICAL SMOKE ODOR PERMEATED THE CABIN WAS SURPRISING TO ME, AND I WAS VERY THANKFUL FOR THE SPD AT WHICH IT DISSIPATED.

Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.